The cod family. The grouping is the book's, though the name is not: 1-191's wachna footnote reads "This name is applied to various species of Gadi; such as Boreogadus polaris in the Arctic, Microgadus proximus and Eleginus navaga (Gadus wachna Pall.) in the Pacific Ocean" — four genera named as one kind, in one sentence, under one Chukchee and Russian word (veˊqän, Вахня). Gadi is the plural of Gadus; the book never prints Gadidae.